Wilfred Xavier Pickles wrote:
On Sat, 13 Jun 2009 15:22:33 -0500, The Daring Dufas wrote:

Would it at all be plausible to adapt C to enable B to work with A?
How to wire? Just plug the converter input into wall, splice output
to B receiver?

Thx,
Will
Does the receiver require regulated, clean DC power

Seems reasonable to assume ...

and does the power supply put out clean, regulated
DC power?

Assume so, for now ...

If everything jives, it will work.

Modern openers run on 12v DC?

The receiver was designed to run on 12v DC from the opener. It has
only 2 wires (same 2 as from opener to manual button).

Does that sufficiently muddy the waters?

W

It wouldn't be all that difficult to design a two
wire interface from the opener so it operates when
the 12 volt DC power is shorted. The trick is to
limit the current the supply can sink into a dead
short, then have a circuit that detects the voltage
drop and triggers the opener. The 78xx series voltage
regulators could be used in such a circuit without
much trouble at all. If I saw the circuit diagram of
the units involved or even installation instructions,
I could figure it out. I've had a lot of experience in
interfacing disparate systems. "Experience" means
that someone has burned up more equipment than anyone
else. "Stupid or dangerous" means that you haven't
learned from your experiences. Some folks think I'm
dangerous for some odd reason. Perhaps it's all that
charred equipment?

TDD